Re GPS

To:	"Birding-aus (E-mail)" <>
Subject:	Re GPS
From:	"Doug Holly" <>
Date:	Fri, 28 Mar 2003 08:27:20 +1030

My Garmin 11 is still working OK and the answer to the ionosphere reflecting
GPS signals, is NO.
Radio signals only bounce off the ionosphere up to
30 mhz ( HF....high frequency) above that, VHF, UHF etc go straight through
and need to hit the moon or man made satellites to bounce back to Earth, I
guess that the same applies to signals coming from above the ionosphere to
Earth.
Doug Holly

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